Final Cut wide gamut: separate library processing from delivery

Write down the source and receiving requirements

Identify the source’s documented color representation and the destination’s accepted delivery space. Keep camera or mastering notes with the media. A bright-looking viewer image or an HDR-looking filename is not enough to establish how the recording should be interpreted.

Record the current library and project settings before changing them. If several projects share the library, review their requirements too. A library-level adjustment made to satisfy one export can alter the context of work that another editor already approved.

Set the library and project deliberately

Select the library and open File, Library Properties, or Control-Command-J. Use Modify for Color Processing to inspect Standard or Wide Gamut HDR. Apple describes this as a library-level setting affecting processing, including aspects of log footage and effect behavior.

Inspect the particular project’s Color Space separately. HDR project choices require a wide-gamut HDR library, but the selected project space remains a separate decision. Choose it to match the intended workflow instead of assuming that the broadest available setting is always the correct delivery target.

Check the effect of changing the processing context

Compare representative clips before and after any change, especially composited titles, blended graphics and filtered footage. Apple cautions that changes to the processing context can affect their appearance. Revisit the accepted grade rather than treating a library-setting change as an invisible metadata edit.

Check source conversion as part of the chain. Mixing SDR and HDR sources calls for deliberate interpretation into the project space. Avoid adding another conversion solely because the picture differs from an old screenshot; first establish which conversion the clip already receives.

Verify the exported representation and appearance

Review the actual share settings and inspect the saved movie with a receiver appropriate to the intended space. Compare gradients, bright detail and neutral areas, not just maximum apparent brightness. Also check any SDR deliverable separately instead of assuming one file will be presented identically everywhere.

Retain the source, editable project and a note of the library, project and export choices. Changing processing space cannot reconstruct genuine highlight information that the source did not capture. SocialVidDownloader does not infer or repair a native Final Cut library’s color decisions from the finished movie.

Worked example

Example: an editor keeps an HDR project and an SDR delivery version in a wide-gamut library. They record each project’s space and review both exports. The library’s wide-gamut setting is not used as proof that the SDR file should be labelled HDR.

Related guidance

• Final Cut color wheels and curves: choose the correction you need
• Final Cut Match Color: review the reference and the whole shot

Sources and verification

• Apple color-processing and project color-space settings
• Apple automatic and manual Color Conform

Reviewed 2026-10-13. Product behavior is limited to available source formats and provider access; it is not a promise that every public link works.